Page 23 - Dimensi 3 Kls 12 Math Wajib
P. 23
Contoh Soal
3. ∠( , ) ?? ? …
4 40 52
6 3
2
2
(6 3) +( 52) −( 40) 2
∠( , ) =
6 2(6 3). ( 52)
36. (3) + 52 − 40 52 6
=
12 156
40 108 + 12 4
6 = = 36 + 16
12 4.39
120
2 = = 52
= 36 + 4 24 39 39 5
5
= . = 39
= 40 39 39 39
